MailBeez
MailBeez V5 arrives with a redesigned workspace, dark mode and V5-ready modules.
Comparison · Mkt Auto
SendPortal vs Customer.io
A side-by-side editorial comparison of SendPortal and Customer.io — release velocity, themes, recent moves, and the top alternatives to consider.
SendPortal vs Customer.io: at a glance
| Feature | SendPortal | Customer.io |
|---|---|---|
| Sector | Mkt Auto | Mkt Auto |
| Velocity score | 2.5 | 5.0 |
| Sparks · 30d | 0 | 0 |
| Top themes | email marketing, self-hosted, laravel, open-source | experiments, design-studio, sms, email-analytics |
| Last editorial update | 19d ago | 4d ago |
| Website | Visit → | — |
What is SendPortal?
SendPortal resurfaces with a v4 patch release, its first tag since 2020.
SendPortal's last tagged release before this month was v1.0.3 in July 2020. On October 22 it published v4.0.0.1, which fixes sp:install skipping migrations on fresh installs and a route-caching failure from a duplicate logout route. The changelog link implies a v4.0.0 release just before it, which isn't in the tracked entries.
What is Customer.io?
Customer.io puts experiments inside automations and makes Design Studio the default editor.
Customer.io is consolidating messaging work into its own canvas. On November 9 Design Studio became the default email editor, covering SMS, WhatsApp and inbox messages too, and Experiments arrived for testing whole multi-step paths inside an automation. The week before brought dynamic SMS senders by country, click heatmaps and per-language rules for auto-translate, after sign-up forms, the Object trigger and new API keys.
SendPortal vs Customer.io: editorial side-by-side
SendPortal
2.5MKT AUTO
SendPortal resurfaces with a v4 patch release, its first tag since 2020.
◆ Current state
SendPortal's last tagged release before this month was v1.0.3 in July 2020. On October 22 it published v4.0.0.1, which fixes sp:install skipping migrations on fresh installs and a route-caching failure from a duplicate logout route. The changelog link implies a v4.0.0 release just before it, which isn't in the tracked entries.
◆ Where it's heading
A major version followed by fixes to the installer suggests the project is active again and new installs are being tested. With two tagged releases six years apart, there's no cadence to read yet.
◆ Prediction
If v4 is a real revival, more point releases should follow within weeks; another long silence would mean v4 was a one-off.
Customer.io
5.0MKT AUTO
Customer.io puts experiments inside automations and makes Design Studio the default editor.
◆ Current state
Customer.io is consolidating messaging work into its own canvas. On November 9 Design Studio became the default email editor, covering SMS, WhatsApp and inbox messages too, and Experiments arrived for testing whole multi-step paths inside an automation. The week before brought dynamic SMS senders by country, click heatmaps and per-language rules for auto-translate, after sign-up forms, the Object trigger and new API keys.
◆ Where it's heading
Releases are moving testing, translation and content creation into the places teams already build journeys, so fewer steps need an outside tool. Daily-cadence shipping across messaging, data and AI translation suggests a broad push rather than one flagship bet.
◆ Prediction
Expect Design Studio to add the channels it says are coming and Experiments to gain reporting or winner automation inside the workflow view.
Alternatives to SendPortal and Customer.io
Other Mkt Auto products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either SendPortal or Customer.io.
Postiz
Postiz encrypts channel tokens and lets agents send connect links for new channels.
n8n
n8n fixes executions being redacted when they used global credentials, on three lines.
Gumloop
Gumloop 13.6 gives admins one set of rules for every tool an agent touches.
AcyMailing
AcyMailing 11.1.2 closes holes that let strangers read or unsubscribe any subscriber.
Buttondown
Buttondown lets writers reorder editor blocks without a mouse.
See all SendPortal alternatives → · See all Customer.io alternatives →
Recent activity from SendPortal and Customer.io
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoCustomer.ioQuiet hours hold SMS until recipients' local sending hours
- 5d agoCustomer.ioDesign Studio is now the default email editor
- 5d agoCustomer.ioRun experiments in your automations
- 8d agoCustomer.ioNew click heatmaps show how people engage with your emails
- 8d agoCustomer.ioDynamic senders: automatically use the right SMS sender
- 9d agoCustomer.ioSet language rules for auto-translated messages
- 23d agoSendPortalv4.0.0.1: fixes fresh-install migrations and route caching
- 6y agoSendPortalv1.0.3: Drops laracatch-client dependency
Frequently asked questions
What is the difference between SendPortal and Customer.io?
They serve adjacent needs but don't currently overlap on shipped themes. Customer.io is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is SendPortal better than Customer.io?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Customer.io is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Mkt Auto products to evaluate alongside.
What are the best alternatives to SendPortal?
Top SendPortal alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "SendPortal alternatives" section above for the current picks, or visit /alternatives/sendportal for the full list with editorial commentary on each.
What are the best alternatives to Customer.io?
Top Customer.io alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Customer.io alternatives" section above for the current picks, or visit /alternatives/customer-io for the full list with editorial commentary on each.